Package: mayavi
Version: 1.4-1
Severity: normal
Hi!
On a sarge box with an nVidia chipset based video card and (sigh!)
proprietary nvidia 3D drivers, mayavi fails to render text in PDF
images saved through GL2PS.
The machine runs XFree86 (version 4.3.0.dfsg.1-14sarge2) and
a locally built vanilla Linux kernel (version 2.4.33.3)
with nvidia-kernel-2.4.33.3 (version 1.0.7174-3+custom.1.0,
locally built, as well).
Steps to reproduce the bug on such a machine:
# aptitude install mayavi
$ mayavi /usr/share/doc/mayavi/examples/heart.mv
A visualization shows up in the main window, with some text
(legend labels, axis names and values, ...).
* from the File menu, select
Save Scene to -> Vector PS/EPS/PDF/TeX (GL2PS)
* in the dialog window, insert 'foo.pdf' as File name
* click on the Save button
* in the next dialog window, click on the Close button
$ xpdf foo.pdf
$ gv foo.pdf
With both viewers, no text is shown.
Repeating the same procedure, with 'foo.eps' instead of 'foo.pdf',
produces an EPS file that similarly shows no text.
I tried the same procedure on another sarge box with a Radeon 9250
based video card (running DRI "radeon" driver and "radeon" DRM kernel
module): on that machine, PDF files are generated with visible text.
Hence, it seems that this bug depends on the 3D graphics drivers.
Please note that the problem seems to lie in the PDF/EPS file
generation (rather than in their viewing), because generating foo.pdf
or foo.eps on the nVidia graphics box and viewing them on the
ATi Radeon box results again in *invisible* text.
I don't know if this bug is due to some problem with the proprietary
OpenGL implementation by nVidia, or something else.
Feel free to reassign the bug to the correct package, if this is
the case.
Thanks for your attention.
-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.4.33.3
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages mayavi depends on:
ii libvtk4-dev 4.4.2-6 VTK header files for building C++
ii python 2.3.5-2 An interactive high-level object-o
ii python-tk 2.3.5-2 Tkinter - Writing Tk applications
ii python-vtk 4.4.2-6 Python bindings for VTK
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